Cargando…
Grossly calcified choroid plexus concealing foramen of Monro meningiomas as an unusual cause of obstructive hydrocephalus
Various intraventricular tumors can present with calcifications; however, the choroid plexus can also have physiological calcifications. This is the first case report of meningiomas located at the bilateral foramen of Monro (FOM), concealed by a grossly calcified choroid plexus, presenting with obst...
Autores principales: | , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Medknow Publications & Media Pvt Ltd
2016
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4732257/ https://www.ncbi.nlm.nih.gov/pubmed/26889294 http://dx.doi.org/10.4103/1793-5482.165779 |
_version_ | 1782412678696796160 |
---|---|
author | Kawaguchi, Tomohiro Fujimura, Miki Tominaga, Teiji |
author_facet | Kawaguchi, Tomohiro Fujimura, Miki Tominaga, Teiji |
author_sort | Kawaguchi, Tomohiro |
collection | PubMed |
description | Various intraventricular tumors can present with calcifications; however, the choroid plexus can also have physiological calcifications. This is the first case report of meningiomas located at the bilateral foramen of Monro (FOM), concealed by a grossly calcified choroid plexus, presenting with obstructive hydrocephalus. A 60-year-old woman with disturbed consciousness was admitted by ambulance. Head computed tomography revealed significantly high-density lesions that smoothly extended from the choroid plexus of the lateral ventricles to the third ventricle. They occupied both sides of the FOM, resulting in obstructive hydrocephalus. The diagnostic endoscopic biopsy was performed using a flexible neuroendoscopic system, and an egg shell-like grossly calcified choroid plexus was found to smoothly extend toward the FOM. Resection was not selected because the calcified lesions had tightly adhered to the veins and fornix; therefore, the patient underwent ventriculo-peritoneal shunting. The lesions were histologically identified as psammomatous meningiomas with low proliferation potential (the Ki-67 labeling index was lower than 1%). She was discharged 10 days after surgery without neurological deficits. As calcifications can have tumoral and nontumoral origins, we considered neuroendoscopic exploration to be essential in order to achieve an accurate diagnosis and select optimal management. |
format | Online Article Text |
id | pubmed-4732257 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Medknow Publications & Media Pvt Ltd |
record_format | MEDLINE/PubMed |
spelling | pubmed-47322572016-02-17 Grossly calcified choroid plexus concealing foramen of Monro meningiomas as an unusual cause of obstructive hydrocephalus Kawaguchi, Tomohiro Fujimura, Miki Tominaga, Teiji Asian J Neurosurg Case Report Various intraventricular tumors can present with calcifications; however, the choroid plexus can also have physiological calcifications. This is the first case report of meningiomas located at the bilateral foramen of Monro (FOM), concealed by a grossly calcified choroid plexus, presenting with obstructive hydrocephalus. A 60-year-old woman with disturbed consciousness was admitted by ambulance. Head computed tomography revealed significantly high-density lesions that smoothly extended from the choroid plexus of the lateral ventricles to the third ventricle. They occupied both sides of the FOM, resulting in obstructive hydrocephalus. The diagnostic endoscopic biopsy was performed using a flexible neuroendoscopic system, and an egg shell-like grossly calcified choroid plexus was found to smoothly extend toward the FOM. Resection was not selected because the calcified lesions had tightly adhered to the veins and fornix; therefore, the patient underwent ventriculo-peritoneal shunting. The lesions were histologically identified as psammomatous meningiomas with low proliferation potential (the Ki-67 labeling index was lower than 1%). She was discharged 10 days after surgery without neurological deficits. As calcifications can have tumoral and nontumoral origins, we considered neuroendoscopic exploration to be essential in order to achieve an accurate diagnosis and select optimal management. Medknow Publications & Media Pvt Ltd 2016 /pmc/articles/PMC4732257/ /pubmed/26889294 http://dx.doi.org/10.4103/1793-5482.165779 Text en Copyright: © Asian Journal of Neurosurgery http://creativecommons.org/licenses/by-nc-sa/3.0 This is an open access article distributed under the terms of the Creative Commons Attribution NonCommercial ShareAlike 3.0 License, which allows others to remix, tweak, and build upon the work non commercially, as long as the author is credited and the new creations are licensed under the identical terms. |
spellingShingle | Case Report Kawaguchi, Tomohiro Fujimura, Miki Tominaga, Teiji Grossly calcified choroid plexus concealing foramen of Monro meningiomas as an unusual cause of obstructive hydrocephalus |
title | Grossly calcified choroid plexus concealing foramen of Monro meningiomas as an unusual cause of obstructive hydrocephalus |
title_full | Grossly calcified choroid plexus concealing foramen of Monro meningiomas as an unusual cause of obstructive hydrocephalus |
title_fullStr | Grossly calcified choroid plexus concealing foramen of Monro meningiomas as an unusual cause of obstructive hydrocephalus |
title_full_unstemmed | Grossly calcified choroid plexus concealing foramen of Monro meningiomas as an unusual cause of obstructive hydrocephalus |
title_short | Grossly calcified choroid plexus concealing foramen of Monro meningiomas as an unusual cause of obstructive hydrocephalus |
title_sort | grossly calcified choroid plexus concealing foramen of monro meningiomas as an unusual cause of obstructive hydrocephalus |
topic | Case Report |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4732257/ https://www.ncbi.nlm.nih.gov/pubmed/26889294 http://dx.doi.org/10.4103/1793-5482.165779 |
work_keys_str_mv | AT kawaguchitomohiro grosslycalcifiedchoroidplexusconcealingforamenofmonromeningiomasasanunusualcauseofobstructivehydrocephalus AT fujimuramiki grosslycalcifiedchoroidplexusconcealingforamenofmonromeningiomasasanunusualcauseofobstructivehydrocephalus AT tominagateiji grosslycalcifiedchoroidplexusconcealingforamenofmonromeningiomasasanunusualcauseofobstructivehydrocephalus |